I have set up station payments for people who are doing pay-as-you-go workshops or programs with me. This gives you the ability to pay this amount or a multiple of it as you feel suits you. The point is as you invest two things happen - you state to the world in a concrete way that you are ready for this process, and you open the path to a two way flow which enhances that which you recieve from the process. You choose when you pay, and how much.